Success Story: NIW Approval for an Expert in Diagnostic and Interventional Radiology Despite Receiving RFE

Posted by wegreened on April 30, 2026 in NIW, Radiology

Client’s Testimonial:

"I am truly delighted to hear that my I-140 has been approved! I would like to express my sincere gratitude to you and your entire team for your effort on my case. I appreciate your guidance and dedication throughout. I could not have achieved this milestone without your support.”

On February 26^th, 2026, we received EB-2 NIW (National Interest Waiver) approval for an Assistant Professor in the Field of Diagnostic and Interventional Radiology (Approval Notice).

General Field: Diagnostic and Interventional Radiology

Position at the Time of Case Filing: Assistant Professor

Country of Origin: South Korea

Country of Residence at the Time of Filing: Republic of Korea

Approval Notice Date: February 26^th, 2026

Processing Time: 19 months, 18 days

Case Summary:

We are honored to announce the National Interest Waiver approval for an assistant professor in diagnostic and interventional radiology who holds an M.S. in medicine and an M.D. Despite receiving an RFE, our team prepared a thorough response, and the petition was approved in over 19 months.

The client's cutting-edge research focuses on developing and applying advanced diagnostic and interventional radiology technologies, including minimally invasive ablation techniques and deep learning-enhanced imaging to improve prognosis and quality of care for patients with oncologic diseases, directly addressing one of America's most critical healthcare burdens.

To establish the expert's qualifications, our team provided supporting evidence in the petition letter. The petition highlighted 19 peer-reviewed journal articles (7 first-authored), with 167 citations, and a peer review service for authoritative journals in the field, with at least 8 reviews completed to date. Multiple articles have been recognized among the top 10% most-cited papers, and the client has received unsolicited invitations to lecture at major international radiology conferences.

Our team highlighted the researcher’s contributions to advancing oncological imaging and interventional techniques, including a novel no-touch ablation approach and a validated automated image-matching system for ultrasound-guided procedures. These findings have been adopted and cited by independent research teams worldwide in top-tier journals, demonstrating their instrumental role in shaping modern cancer diagnostics and treatment. With an estimated 1.9 million Americans receiving a cancer diagnosis each year, the client's research is directly aligned with the nation's most urgent public health priorities.

We are honored to have supported this exceptional clinician-researcher in achieving NIW approval and wish them continued success in advancing radiology and improving patient outcomes across the United States.

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North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Sixty-four Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

With nearly 64,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Tens of Thousands of Clients with Credentials and Backgrounds Similar to Yours

With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Vast Majority of Clients Came to Us Because of Referrals

For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our cumulative total of approved cases grew from 600 in 2013 to nearly 64,000 in 2025.

Track Record of Success EB-1 and NIW Approvals

(2012.01 - 2025.12)

Category	Approval or Refund^®		Approval or Refiling^TM
	Approval or Refund^®
Category	Approved Sum	Success Rate	Approved Sum	Success Rate
NIW	42,047	99%	5,258	97%
EB1A	9,218	91%	4,534	86%
EB1B	1,488	98%	448	93%
Total	52,753	98%	10,240	92%